Atmospheric Radiation Environment Effects on Electronic Balloon Board Observed During Polar Vortex and Equatorial Operational Campaigns

In this paper, we describe functional anomalies induced by the atmospheric radiation environment in flight balloon during polar vortex and equatorial operational campaigns. These anomalies are the consequence of single event effects (SEE) and are characterized by over-current events on electronic boards inducing the inability to enter into communication. Objectives of this paper consist of describing and analyzing data issued from operational in-flight, then to demonstrate that radiations are the origin of anomalies. High-energy neutron operational campaign (Uppsala) and SEE high-energy proton test at device level (KYI) were performed. Modeling approaches were proposed and results are compared with in-flight data. Then, this work demonstrates the operational impact induced by neutron and proton environments on electronic balloon board and proposes modeling and experimental approaches to quantify the SEE risk.